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Definition
| these are manipulated or measured in an experiment |
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| these are manipulated by the scientist |
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| these are measured or observed |
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| all aspects of the experiment that are not the variables being tested |
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| the reaction at room temp. |
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| are the ones run at higher or lower temp. ... temp. being the independent variable and the speed of reaction the dependent |
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| a statement of what you believe will happen |
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| attempts to explain why behavior happens and how phenomena relate to one another |
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| important to do more than 1 trial in order to see the result wasn't just a one time thing, but that it happens over and over again |
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| describes measurements or results that are consistent |
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| explains how or why behaviors happen |
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| describe what happens (don't attempt to explain why) |
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| observations are qualitative records, which means they don't include #'s or measurments |
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| data is a quantitative record, meaning it uses measurements and #'s (data can also be qualitative) |
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| dimensional analysis (railroad tracks) |
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Definition
| based on the idea that you can multiply anything by 1 as many times as you want and not change the value of the measurment |
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Definition
| allow everyone looking at data and results to see how precisely measurements were taken and which decimal place is estimated or uncertain |
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Definition
| are formed when more than 1 element combines with a chemical bond |
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| homogeneous mixtures (solutions) |
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Definition
| are present when a mixture looks the same throughout ex.- water |
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Definition
| clearly shows more than one component- it can have layers, chunks, floating items, or bubbles ex.- lake water |
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| the particles dissolved in a solution are too small to scatter light |
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| has particles large enough that they will settle out over time |
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| made when metal atoms bond w/ non-metal items |
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